基于态势感知的高渗透率电动汽车接入电网后电压调整策略

doi:10.11930/j.issn.1004-9649.202204108

中国电力 ›› 2023, Vol. 56 ›› Issue (2): 32-44.DOI: 10.11930/j.issn.1004-9649.202204108

• 多元负荷用能感知及友好互动 • 上一篇下一篇

基于态势感知的高渗透率电动汽车接入电网后电压调整策略

刘宗¹, 何俊¹, 黄文涛¹, 朱理文¹, 邓长虹²

1. 太阳能高效利用及储能运行控制湖北省重点实验室（湖北工业大学），湖北武汉　430068;
2. 武汉大学电气与自动化学院，湖北武汉　430072

收稿日期:2022-04-25 修回日期:2022-12-08 出版日期:2023-02-28 发布日期:2023-02-23
作者简介:刘宗（1998—），男，硕士研究生，从事电力系统运行与控制、新能源与能源互联网规划设计和调度研究，E-mail：1404511779@qq.com;何俊（1987—），男，博士，高级工程师，从事电力系统安全稳定分析、电力能源规划、设计和调度研究，E-mail：apm874@163.com;黄文涛（1984—），男，通信作者，博士，高级工程师，从事抽水蓄能、新能源发电并网及新型电力系统相关的电力系统稳定与控制研究，E-mail：280515123@qq.com
基金资助:
湖北省重点实验室开放研究基金资助项目（HBSEEE202008）。

Voltage Adjustment Strategy for High-Penetration Electric Vehicles Connected to Power Grid Based on Situation Awareness

LIU Zong¹, HE Jun¹, HUANG Wentao¹, ZHU Liwen¹, DENG Changhong²

1. Hubei Collaborative Innovation Center for High-Efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan 430068, China;
2. School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China

Received:2022-04-25 Revised:2022-12-08 Online:2023-02-28 Published:2023-02-23
Supported by:
This work is supported by Hubei Provincial Key Laboratory Open Research Fund (No.HBSEEE202008).

摘要/Abstract

摘要： 随着电动汽车使用量增加，区域配电网在高渗透率电动汽车接入配电网后会出现节点电压越限问题。基于态势感知技术，提出区域配电网内无功补偿设备以及电动汽车充电站联合参与的电压调整策略，通过构建二级调压模式确保配电网的电压状态。首先，在态势觉察阶段收集电动汽车状态、电网运行状态以及电动汽车充电站状态等信息；其次在态势理解阶段利用态势觉察阶段收集到的信息进行高渗透率电动汽车接入电网后模拟构建综合成本最小目标函数；然后在态势预测阶段根据电动汽车充电需求、电动汽车充电站信息预测高渗透率电动汽车接入电网后配电网电压偏差，基于潮流断面建立全局电气距离矩阵对预测电压修正，确认电网预测电压偏差；最后在利导阶段引入配电网电压偏差指标确定配电网电压偏离程度同时考虑配电网调压方式，对于不同程度的电压偏差确定配电网二级调压控制策略。通过IEEE 30节点系统进行仿真分析，验证了所提方法能够有效解决高渗透率电动汽车接入电网后电网电压越限问题。

关键词: 电动汽车, 态势感知, 二级调控, 电压越限, 充电站

Abstract: Along with the increase of EVs use, the regional distribution network will experience nodal voltage overlimit problem after high penetration EVs are connected to the distribution network. Based on situation awareness technology, this paper proposes a voltage adjustment strategy with the joint participation of reactive power compensation equipment and EVs in the regional distribution network to ensure the voltage status of the distribution network through constructing a secondary voltage regulation mode. In the situation perception stage, the information on the EV status, grid operation status and EV charging station status is collected; in the situation assessment stage, the information collected in the situation perception stage is used to establish an objective function with minimum comprehensive cost after high penetration EVs are connected to the grid; in the situation prediction stage, the voltage deviation of the distribution network is predicted according to the charging demand of EVs and the information of EV charging stations, and a global electrical distance matrix is established to correct the predicted voltage based on the power flow section and to confirm the voltage deviation of the grid; in the facilitation stage, the distribution network voltage deviation index is introduced to determine the degree of distribution network’s voltage deviation with consideration of the voltage regulation mode within the distribution network, and the secondary voltage regulation control strategy of the distribution network is determined for different degrees of voltage deviation. A simulation analysis is carried out with IEEE 30-node system, and the results have verified that the proposed method can effectively solve the grid voltage overlimit problem after high penetration of EVs are connected to the grid.

Key words: electric vehicle, situational awareness, secondary regulation, voltage overlimit, charging station

刘宗, 何俊, 黄文涛, 朱理文, 邓长虹. 基于态势感知的高渗透率电动汽车接入电网后电压调整策略[J]. 中国电力, 2023, 56(2): 32-44.

LIU Zong, HE Jun, HUANG Wentao, ZHU Liwen, DENG Changhong. Voltage Adjustment Strategy for High-Penetration Electric Vehicles Connected to Power Grid Based on Situation Awareness[J]. Electric Power, 2023, 56(2): 32-44.

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基于态势感知的高渗透率电动汽车接入电网后电压调整策略

Voltage Adjustment Strategy for High-Penetration Electric Vehicles Connected to Power Grid Based on Situation Awareness

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基于态势感知的高渗透率电动汽车接入电网后电压调整策略

Voltage Adjustment Strategy for High-Penetration Electric Vehicles Connected to Power Grid Based on Situation Awareness

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